Aqualisa Quartz shower has a noisy pump

We had an Aqualisa Quartz shower fitted about 18 months ago. It's been a great shower and has generally run quietly and efficiently until now, but the pump noise has suddenly increased. A similar thing happened when it was nearly new and turned out to be an airlock, which cleared when we switched the shower to boost. However, this time I cannot clear it. Are there any common problems with these pumps, or any tricks for clearing airlocks?

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Related Questions:

usualy u have to have a filter, before pump, if the filter is dirty u will have no presure, but i need to know if the pump starts or not, u can try to clean the filter, for more advance testing u need to have a litlle knolege, hope will be ok, is the easy way whit all the machines that are conected to water suply a filter can be check by all persons

I thought this may be helpful as I have seen the same question a few times. A few days ago after my shower I turned the switch to off but the power motor was still running with water still coming out. I thought a new shower or at least an expensive call out. I looked up parts and decided to take a look and if needed replace a whole part or parts to save the call out costs.
the aqualisa is generally easy to dismantle as each part is substantial, if you are unsure look on their web site for the diagrams. This took me about 15 minutes and shower is working perfectly again and I was almost ready to replace parts or even a new shower at £400+. You will only need a cross head and a straight screwdriver.
-isolate the hot and cold supplies, and turn off the power.
- run the bathroom taps to reduce the water reassure and build up in the pipes.
- remove the front on/off dial
- remove the temperature control
- remove the front cover
- remove the black cover that clips over the main black cartridge, there is a black wire wrapped around the front holding the assembly in place so you have to remove the wire cluster that is secured on the right.
- you will see 4 torque screws holding the cartridge in place, these screws also have a straight screwdriver slot - loosen these, Be careful, there will be water and pressure still in the shower, allow this to spray out, it will gradually stop after about 30 seconds, now full remove the 4 screws.
- gently withdraw the cartridge
At the back of the cartridge is a small white water filter, check this and clear it, Mine was full of debris. Also check inside the recess as I found large lumps of grit from the water supply.
i believe the shower could not switch off as the grit and small debris had blocked the on off valve so water was still flowing and the pump therefore continued to run.
Now just assemble in he reverse order, turn the water supply and power on and the shower should work perfectly well.

After I realised that the turning off had felt different and it seemed to be spungy at the final bit of the turn off, I now realise this was the grit not allowing the mechanism to full close.
hope this helps someone.

If you are not getting any water through your shower it is possible that there is a restriction.

Please note that the air lock test is only neccessary if you're shower is the Pumped Digital Quartz or Quartz Thermo Mixer Shower and that you are on a Gravity Fed Water System (cold tank in loft).

The hose will appear fine from the outside,but the hose has an internal rubber liner which can become blocked/twisted.
To remedy this,unscrew the shower head from the hose anti-clockwise.Place the open end of the hose to it's lowest point (bath or tray).
Turn the water on.The water SHOULD come out in a straight line,if however the water comes out in a V-Shape the liner is twisted and the hose will need replacing.

Air LockIf there is air in your pipework this will cause low flow and pulsing.To remedy this fault do the same above but run the water on FULL COLD for two minutes and then FULL HOT for three minutes.
If the water pulsates it is the air escaping.If it does this leave it until it corrects itself.

Hope that this info helps you,if it doesn't it sounds like you have a mechanical fault with the processor box.